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R E M O T E T D M P S E U D O W I R E G A T E W A Y S
port, a remote IPmux-24 can accurately
regenerate an original clock transmission in
varying network load conditions. The IPmux-24
conforms to ITU-T G.823/G.824 traffic and
synchronization interface requirements and to
G.8261-defined scenarios, providing low latency,
attenuating delay variations and enabling service
resiliency. Such high precision clocking attributes
provide a frequency accuracy level of 16 ppb,
guaranteeing a smooth operation of 2G and 3G
cellular equipment over PSNs.
Ethernet QoS and VLAN capabilities
The IPmux-24 includes an internal Ethernet
bridge, operating in either VLAN-aware or VLAN-
unaware mode. It supports VLAN tagging per
IEEE 802.1Q and VLAN stacking (Q-in-Q), which
allow traffic separation between different users
or services. Supporting Ethernet private line
(EPL) service provisioning, the IPmux-24 also
includes enhanced traffic engineering and CIR/
CBS rate limitation features, thereby enabling
service providers to granularly adjust bandwidth
to fit capacity requirements. SLA enforcement
and QoS guarantees are supported by four strict
priority queues, classified by VLAN tags, per port
802.1p bits, IP Precedence, or ToS/DSCP bits.
OAM and diagnostics
The IPmux-24 incorporates a pseudowire OAM
mechanism that enables end-to-end monitoring
of the pseudowire link, performing connectivity
verification and round-trip delay measurements,
as well as preventing pseudowire configuration
errors. Diagnostic loopbacks can be remotely
activated, while network condition statistics for
the LAN and IP layers are also monitored and
stored by the device. Performance monitoring
parameters include packet loss, packet mismatch
and packet delay variation.
Service center management and security
The IPmux-24 features flexible management
capabilities, including local management via an
ASCII terminal (RS-232). In addition, remote
management can be performed either inband or
out-of-band, using the network or user ports,
while maintaining separation between
management and user traffic via the use of
VLANs. Advanced FCAPS (Fault, Configuration,
Accounting, Performance, Security), service
provisioning and diagnostic tools are provided by
RADview-SC/TDMoIP, RAD’s network management
system, via an SNMP-based GUI.
The IPmux-24 also supports a variety of
configuration access channels, including Telnet,
SNMP, Web server, and TFTP. Incorporated security
features include Secure Shell (SSH), Web-based
Secure Socket Layer (SSL), SNMPv3, and RADIUS.
BTS
2 x E1/T1
GbE
Ring
IP
Node B
FE/GbE
BTS
IP
Node B
2 x E1/T1FE/GbE
IPmux-24
IPmux-24
IPmux-24
Central Site
BSC
Mobile
switch
Gmux-2000
PSN
Ethernet
switch
RNC
196 x E1/T1
7 x Ch. T3
6 x Ch. STM-1/OC-3
GbE
Ethernet
switch
Cellular backhaul application over an Ethernet ring
IPmux-24, metal enclosure
(184 pagine)
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